Thermal diffusion is a phenomenon in which a temperature gradient in a mixture of fluids gives rise to a flow of one constituent relative to the mixture as a whole. in the context of the equation that describes thermal diffusion, the "Thermal Diffusion Factor" is .
Applicable units are those of quantitykind:ThermalDiffusionFactor
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Thermal diffusion is a phenomenon in which a temperature gradient in a mixture of fluids gives rise to a flow of one constituent relative to the mixture as a whole. in the context of the equation that describes thermal diffusion, the "Thermal Diffusion Factor" is .
$\alpha_T = \frac{k_T}{(x_A x_B)}$, where $k_T$ is the thermal diffusion ratio, and $x_A$ and $x_B$ are the local amount-of-substance fractions of the two substances $A$ and $B$.
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